Home / 4,855.68-7,278.26-3,189.11

Finding the Fourth Proportional to 4,855.68, 7,278.26 and 3,189.11

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Solution

The fourth proportional to 4,855.68, 7,278.26 and 3,189.11 is: 4,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.68 : 7,278.26 = 3,189.11 : x
  2. Step 2: Convert to fraction form
    4,855.68/7,278.26 = 3,189.11/x
  3. Step 3: Cross multiply
    4,855.68x = 7,278.26 × 3,189.11
  4. Step 4: Simplify right side
    4,855.68x = 23,211,119.41
  5. Step 5: Solve for x
    x = 23,211,119.41/4,855.68
  6. Step 6: Final answer
    x = 4,780.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.